Add support for USAGE_VOICE_COMMUNICATION playback capture
Allow audio playback capture for the USAGE_VOICE_COMMUNICATION usage
only for priveliged apps that are granted with the CAPTURE_VOICE_COMMUNICATION_OUTPUT
permission.
Test: atest android.media.cts.AudioPlaybackCaptureTest
Test: Manually
Bug: 124653474
Change-Id: Ib568ca590ea534837c396536f5e31cf60a5caf52
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index c865063..362bbc1 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -1220,14 +1220,39 @@
return PERMISSION_DENIED;
}
+ // Require CAPTURE_VOICE_COMMUNICATION_OUTPUT if one of the
+ // mixes is a render|loopback mix that aim to capture audio played with
+ // USAGE_VOICE_COMMUNICATION.
+ bool needCaptureVoiceCommunicationOutput =
+ std::any_of(mixes.begin(), mixes.end(), [](auto& mix) {
+ return is_mix_loopback_render(mix.mRouteFlags) &&
+ mix.hasMatchingRuleForUsage([] (auto usage) {
+ return usage == AUDIO_USAGE_VOICE_COMMUNICATION;});
+ });
+
+ // Require CAPTURE_MEDIA_OUTPUT if there is a mix for priveliged capture
+ // which is trying to capture any usage which is not USAGE_VOICE_COMMUNICATION.
+ // (If USAGE_VOICE_COMMUNICATION should be captured, then CAPTURE_VOICE_COMMUNICATION_OUTPUT
+ // is required, even if it is not privileged capture).
bool needCaptureMediaOutput = std::any_of(mixes.begin(), mixes.end(), [](auto& mix) {
- return mix.mAllowPrivilegedPlaybackCapture; });
+ return mix.mAllowPrivilegedPlaybackCapture &&
+ mix.hasMatchingRuleForUsage([] (auto usage) {
+ return usage != AUDIO_USAGE_VOICE_COMMUNICATION;
+ });
+ });
+
const uid_t callingUid = IPCThreadState::self()->getCallingUid();
const pid_t callingPid = IPCThreadState::self()->getCallingPid();
+
if (needCaptureMediaOutput && !captureMediaOutputAllowed(callingPid, callingUid)) {
return PERMISSION_DENIED;
}
+ if (needCaptureVoiceCommunicationOutput &&
+ !captureVoiceCommunicationOutputAllowed(callingPid, callingUid)) {
+ return PERMISSION_DENIED;
+ }
+
if (mAudioPolicyManager == NULL) {
return NO_INIT;
}